Window-sash support and lock.



No. 778,385. PATENTED DEG. 27.1904.

' 1 V J. L. SUMNER.

' WINDOW SASH SUPPORT AND LOOK.

PPPPP 04121011 FILED how's, 190s.

Witnesses UNITED STATES Patented. December 27, 1904.

PATENT OFFICE.

WINDOW-SASH SUPPQRT AND LOCK.

SPECIFICATION forming part of Letters Patent N 0. 778,385, datedDecember 27, 1904.

' Application filed November 2, 1903. Serial No. 179,494- I To all whom,it may concern: I

Be it known that I, JOHN L. SUMNER, a citizen of the United States,residing at Bayard, in the county of Guthrie and State of Iowa, haveinvented certain new and useful Window-Sash Supports and Locks, of whichthe following is a specification.

The objects of my invention are to provide a simple, durable, andinexpensive device for supporting the window-at any point of itsverticahmovement and to lock the windowsash at the desired point, sothat whether the window is closed or raised a slight distance it islocked, so as to prevent it being raised or lowered without firstreleasing the locking mechanism. 7

A further object is to provide a locking mechanism which can-be easilyattached to the outer window-frame and which byits peculiar constructioncan be so attached to the window as to prevent the rubbing and markingof the exterior window-sash, as is prevalent in the use of devices madefor the same purpose.

My invention consists in certain details in the construction,arrangement, and combination of the various parts of the device wherebythe objects contemplated are attained, as hereinafter more fully setforth, pointed out in my claim, and illustrated in the accompanyingdrawings, in which- I Figure 1 is a side elevation of the portion of awindow frame and sash with the portion of the sash cut away and-theupper portion of my sash-lock removed to show the mechanism on itsinterior and to show the way in which the locking mechanism operates onthe sash. Fig. 2 is a cross-sectional view of the locking mechanism andof a portion of the sash and frame adjacent to it cut on the line 2 2 ofFig. 1. Fig. 3 shows a portion of the window frame and sash and amodified form of the locking device with the upper portion removed toshow the internal arrangement of the locking mechanism. Fig. 4 shows inperspective the modified form of the locking dev1ce.

Referring to the accompanying drawings,

I have used the numeral to indicate the side of a window-frame.

The numeral 11 indicates the retainingstrips for holding the sashagainst horizontalniovement and maintain it in a vertical posijectingoutside of the portion 13. The piv-' ots by which the levers and l6'areattached to the back portion 131 have designated by the numerals'lS and19. Extending substantially at right angles to the body portion of thelevers 14 and 15 is the extension having on its forward end theextension 21, which is at right angles to the extension 20 andsubstantially parallel with the body portion of the lever to which itisattached. The extreme ends of the extensions 21, which are away from thethumb-pieces l6 and 17, are rounded and are designed toengage the sideof the window-casing. Any adhesive substances may be attached to therounded ends of the extensions 21, or these ends may be roughened tomore efficiently hold the sash against vertical 1 movement when thelocking device is attached to the sash and in a locked position. A smallportion of the sash has to be cut away, substantially as shown in thedrawings, at the point designated by the numeral 22 to receive theextensions 20 and 21. After this portion of the sash has been cut awaythe extensions are inserted in the opening formed by cutting away aportion of the sash at 22, and it will be seen that the roughened endsof the extension 21 will rest against that portion of the window whichis not exposed,and thus, even though the weight of the sash causes theextension 21 to make slight indentations in the side of-the frame, theseindentations will not be exposed to view, which is decidedly advantageous over the devices in use for supporting and lockingwindow-frames by a mechanism somewhat similar to the constructions ofapplicant.

A cover 23 for the locking mechanism is provided to keep the operativeworks of the mechanism in position. Between the lockinglevers 14 and 15I have provided a spring 24, which is designed to hold the ends of thelocking-levers to which the thumb-pieces are attached away from each andmaintain the levers in a locked position except when the springs aredrawn toward each other by pressing the thumb-pieces together. In themodified form shown in Figs. 3 and 4: but one locking-lever, which Ihave designated by the numeral 25, is used and has a spring F16 to holdit in a locked position.

The lever in the modified form does not have the right-angle extension22; but aside from this the levers are alike throughout.

In the use of the modified form it is not necessary to cut away anyportion of the sash, the device being simply attached to the outside ofthe window-sash and the lever acts on the outside of the window-frame.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States therefor, is

The combination with a window-frame having parallel stops, a slidingsash having a notch adjacent to one of the stops, a metal case havingfiat sides and open at both ends secured to the face of the sashadjacent to the notch, a locking-lever fulcrumed within the ease; havingone end provided with a thumbpiece and projected through the inner endof the case, and its other end formed with a cam-shaped extension havinga lateral bendv therein, said end projected through the other end of thecase to a point adjacent to the stop then inwardly into the notch in thesash and finally to position adjacent to the windowframe between thestops, and a spring within the case normally holding the cam-shaped endin engagement with the window-frame.

JOHN L. SU NEH.

Vitnesses:

A. (3-. HAGUE, IV. R. LANE.

